Related Questions

For obtaining vinyl chloride acetate, the method used, is
A Addition polymerization
B Condensation polymerization
C Co-polymerization
D None of these
Melt spinning of polymers involves the forcing of polymer melt through spinnerettes (fine holes) into an atmosphere kept at a temperature lower than the melting point of the polymer, which causes the fine diameter polymer melt to harden into filaments. Melt spinning is not used in case of the __________ fibres.
A Acrylic
B Polyester
C Nylon 6:6
D Polypropylene
Which of the following polymers is obtained by copolymerisation of three monomers?
A SAN
B ABS
C SBR
D PTFE
In case of dry spinning of polymers, the polymer solution in a volatile solvent is forced through the spinnerates into a warm air chamber, where the solvent evaporates leaving behind the polymer in the filament form. Dry spinning is used for __________ fibres.
A Polythene
B PVC
C Rayon
D Polyvinyl acetate
In a cross linked polymer, the monomeric units are linked together to constitute a three dimensional network. Which of the following is a cross-linked polymer?
A Bakelite (phenol formaldehyde)
B Polyester
C Polythene
D Nylon-6
Vinyl flooring is done using __________ sheets.
A Polypropylene
B PVC
C Polythene
D Polyvinyl acetate
Poly Vinyl Chloride (P.V.C.) is a __________ material.
A Thermosetting
B Thermoplastic
C Fibrous
D Chemically active
Poly Vinyl chloride (PVC) is a __________ material.
A Thermoplastic
B Thermosetting
C Fibrous
D Chemically active
Polymethyl methacrylate (PMMA) which is also known as perspex and is produced by bulk polymerisation of methyl methacrylate is not a __________ polymer.
A Thermoplastic
B Thermosetting
C Linear
D Glass like transparent
A copolymer of vinyl and vinylidine chloride is called
A Treylene
B Orlon
C Saran
D Dacron

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